Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quais são os filmes de código aberto com lançamentos planejados em 2013?
 ###Tabelas: CREATE TABLE upcoming_films (upcoming_films_id AUTO_INCREMENT PRIMARY KEY, Name VARCHAR, Type VARCHAR, Planned Release VARCHAR, CC License VARCHAR, Sources available VARCHAR, Open Source Movie VARCHAR) CREATE TABLE game_history (game_history_id AUTO_INCREMENT PRIMARY KEY, Year INT, Date VARCHAR, Television VARCHAR, Designated Visitors VARCHAR, Designated Home VARCHAR, Stadium VARCHAR, City VARCHAR) CREATE TABLE st._louis_cardinals_vs._houston_astros (st._louis_cardinals_vs._houston_astros_id AUTO_INCREMENT PRIMARY KEY, Game INT, Date VARCHAR, Location VARCHAR, Time VARCHAR, Attendance INT) CREATE TABLE comparison_of_toy_group_breeds_of_major_kennel_clubs (comparison_of_toy_group_breeds_of_major_kennel_clubs_id AUTO_INCREMENT PRIMARY KEY, The Kennel Club (UK) Toy Group VARCHAR, Canadian Kennel Club Toy Dogs Group VARCHAR, American Kennel Club Toy Group VARCHAR, Australian National Kennel Council Toy Dogs Group VARCHAR, New Zealand Kennel Club Toy Group VARCHAR) CREATE TABLE club_world_cup_finalists_by_nation (club_world_cup_finalists_by_nation_id AUTO_INCREMENT PRIMARY KEY, Nation VARCHAR, Finalists INT, Winners INT, Runners-up INT, % won INT, Years won VARCHAR)  
SELECT Open Source Movie FROM upcoming_films WHERE Planned Release = 2013